Been awhile since I've posted! Recently I put a 280zx close ratio 5 speed in my 521 (L20b) with a brand new clutch, flywheel, TO bearing/collar, clutch fork, slave, and master cylinder. Ive had it in for about 2 months now and everything was fine. Within the past week I've noticed it was engaging/disengaging lower and lower. So the other day I tossed on anther slave I had, bled about 4-5 reservoirs worth of fluid threw, and it seemed to be better for about 30 mins of driving, but now it's progressively getting worse, now it's hard to put into first gear (sometimes won't) and shifts hard into 2nd. And randomly will work ok but still engages very low on the pedal throw. Fluid level is fine, fluid is clean.
I was told it could be an internal leak/bypass, but the master is maybe 3 months old and the slave I put on 2 days ago. I'm stumped, everything has been replaced so that means I either got shitty parts from car quest, or I did something wrong. Any ideas on what it might be?